Apache Arrow is a cross-language development platform for in-memory data. It specifies a standardized language-independent columnar memory format for flat and hierarchical data, organized for efficient analytic operations on modern hardware. It also provides computational libraries and zero-copy streaming messaging and interprocess communication. Languages currently supported include C, C++, Java, JavaScript, Python, and Ruby.
active 2023-08-15 → 2026-08-04 (UTC)
Activity over time
Daily event counts in the loaded window
Line chart, 1086 days from 2023-08-15 to 2026-08-04. Pushes: 600 total, peak 31 in a day. Pull requests: 27 total, peak 13 in a day. Issues: 19 total, peak 11 in a day. Comments: 64 total, peak 15 in a day. Stars: 1 total, peak 1 in a day.
- Pushes
- Pull requests
- Issues
- Comments
- Stars
Stars, PRs, issues and forks are under-captured in the later part of this window. GH Archive progressively stopped capturing non-push events during 2026 — −95% or worse by the end of the window. Every series here except Pushes fades for that reason, so a decline above reflects the archive, not this repository. Pushes stay reliable throughout, so read them, and the contributor counts derived from them, as the real signal. Data health has the measurements.
Top contributors
Pushes, PRs, issues, reviews and comments — stars and forks excluded, so this is contribution rather than popularity
| Contributor | Contributions | Pushes | PRs | Comments |
|---|---|---|---|---|
| rok | 567 | 539 | 4 | 11 |
| github-actions[bot] | 11 | 0 | 2 | 9 |
| pitrou | 8 | 4 | 0 | 3 |
| paddyroddy | 4 | 3 | 0 | 1 |
| amoeba | 1 | 0 | 0 | 1 |
| kou | 1 | 0 | 0 | 1 |
| jorisvandenbossche | 1 | 1 | 0 | 0 |
Recent activity
Latest issues, pull requests and releases
- Pull request#48github-actions[bot]2026-02-09 12:22
- Issue comment#48github-actions[bot]2026-02-09 12:22Add normalize_batches
- Issue comment#47rok2026-02-04 10:39Draft replace rapidjson with simdjson
- Issue comment#47rok2026-02-04 00:23Draft replace rapidjson with simdjson
- Pull request#47github-actions[bot]2026-01-09 19:33
- Issue comment#47github-actions[bot]2026-01-09 19:33Draft replace rapidjson with simdjson
- Issue comment#45rok2025-09-20 19:57[Python] Gradually add type checks to Arrow, initial step
- Pull request#45rok2025-09-20 19:57
- Issue comment#45pitrou2025-09-15 09:48[Python] Gradually add type checks to Arrow, initial step
- Issue comment#45rok2025-09-12 14:11[Python] Gradually add type checks to Arrow, initial step
- Issue comment#46github-actions[bot]2025-09-12 11:16[Python] Gradually add types checks to Arrow
- Issue comment#46github-actions[bot]2025-09-12 11:10[Python] Gradually add types checks to Arrow
- Pull request#46rok2025-09-05 17:44
- Issue comment#45github-actions[bot]2025-08-21 19:32[Python] Gradually add pyarrow-stubs to Arrow
- Issue comment#42rok2025-07-31 16:07[Python] Add typing to arrow using pyarrow-stubs
- Issue comment#44github-actions[bot]2025-07-31 14:39GH-47234: [C++][Python] Regression testing
- Pull request#44rok2025-07-31 14:26
- Issue comment#44github-actions[bot]2025-07-31 14:20GH-47234: [C++][Python] Regression testing
- Pull request#44rok2025-07-31 14:20
- Issue comment#42paddyroddy2025-07-31 08:42[Python] Add typing to arrow using pyarrow-stubs
- Issue comment#42amoeba2025-07-30 17:18[Python] Add typing to arrow using pyarrow-stubs
- Issue comment#42kou2025-07-29 20:47[Python] Add typing to arrow using pyarrow-stubs
- Issue comment#42rok2025-07-29 11:54[Python] Add typing to arrow using pyarrow-stubs
- Issue#21rok2025-07-28 17:51`unsupported-operator`
- Issue#27rok2025-07-28 17:51call-non-callable
Totals cover only the window loaded into ClickHouse and count events, not GitHub's lifetime totals — 1 stars here means stars gained during the window, not the repo's star count.